Email id login failed on android app

Dear community:

I got a problem accessing toggl with android app.
May need your help, here is the description.

The first abnormal thing occured about 3 days ago. When I found the toggl
android app can’t be accessed, and tool notified that I had not upgraded the app
for a long time. While I have no other option, except to close the app and tried
to upgrade to version 8.50.

With updated APP, I still failed to tap the login with my email address. What I
can do is to login with my google account as a new user, everything is new, and
the tool automatically treated this new account as a pro user.

I also found and with original email address id, I can login successfully on webpage.

So, can anyone tell if there is new restriction to accessing android app with email address now?

The other information is that the original email address id is free user, not
paid, not sure if there is any relation with the access issue.

Thank you!